http://localhost:8080/xmlui/handle/123456789/26 2026-10-16T03:11:46Z http://localhost:8080/xmlui/handle/123456789/556 Comparison of three methods, utilizing different principles, for determination of Ascorbic acid from seeds of Baobab fruit Salah Mergani; Zakia Badreldin; Hana AbdElaziz; Abdallah Alabed The aim of this study is to determine concentration of Ascorbic acid (Vitamin C) in seeds of Baobab plant. The samples were collected from Elobeid city (Northern Kordofan) and Portsudan city (Red Sea State) market and experimental tests were done by three different methods, the titration with 2,6 dichlorophenol indo phenol, Iodine titration and spectrophotometer device. The result shown that concentration of the ascorbic acid by 2,6 dichlorophenol indophenol for Elobeid sample is 232 mg / 100 gm and for portsudan sample is 227.7 mg / 100 gm. And its concentration by spectrophotometer in Elobeid sample is 217.5 mg / 100 gm and portsudan is 205 mg / 100 gm, and by Iodine titration the concentration of Ascorbic acid for Elobeid sample is 187.6 mg / 100 gm and portsudan sample is175 mg / 100 gm. The results indicter that titration method against 2,6 dichlorophenol indo phenol is the best method in this study for determination Ascorbic acid and Elobeid sample contained high concentration of Ascorbic acid to be used as antioxidant properties. 2018-06-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/555 Effect of Purification on Sodium Chloride produced from Seawater Based on Solar Evaporation Salma Mohmed Ahmmed; Hana AbdElaziz; Salah Mergani; Abdallah Alabed The aims of this study were to evaluate the raw salt (Sodium Chloride (NaCl)) manufactured at Port Sudan and to find the effect of purifying this raw salt to conform with the international and Sudanese standards for table salt. Samples were taken from two factories: Baboud and Rwaia which produce raw salt. The samples were analyzed to determine their quality. The samples were then treated in the laboratory by washing with saturated solution of pure NaCl to remove the impurities i.e. SO42-, Ca+2, Mg+2, CO32-, CL— etc. The treated samples were analyzed and the results revealed that washing of the raw salt with brine must be adapted for the salt produced in Port Sudan at different factories for it is contaminated with elements that make it not conforming with the standard. 2018-06-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/554 Control of H. elaterii by Citrulluscolocynthis L. fruit aqueous extract Omyma Algamer; Hana AbdElaziz; Adalmahmod Saad; Nabil H. H Bashir; Yousif O. H. Assad This study aimed to to investigate the potentialities of using the bitter apple Citrullus colocynthis fruit aqueous –extract against H. elaterii. The effect of the extract on the development of the Larvae fourth stage (L4s) (duration in days) and food-consumption rate, were studied. Concentrations of 2.5, 5, 6, and 7% (w/v) of the extracts were prepared. L4s were fed on snake-cucumber leaf-discs treated with extracts for 24, 48 hr or for the whole L4 duration. For the rest of the L4 duration, L4s were offered untreated leaf-discs. The results of HF-aq-extract on the L4s revealed that the extracts of the fruits could be used as insecticides having the properties of repellency at all tested concentrations. 2018-06-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/553 Comparison between Delayed Coker and Charcoal to Enhanced Wastewater Treatment Hana AbdElaziz; Babiker K. Abdalla; Salah Mergani The This study aimed to compare between Delayed Coker and Charcoal to enhance wastewater treatment, in order to investigate the best method for wastewater treatment. Wastewater samples were taken from wastewater biologically treatment unit at the Coral hotel in Port Sudan city as final wastewater treated. After that, the samples undergone chemical treatment by adding adsorbent material (Charcoal (CC) Delayed Coker (D.C)). Then the chemical properties of the treated wastewater were measured by testing as: pH, TDS, conductivity and some of ions. The measurements of ions was done by titration methods. The results showed that the Chemical treatment of wastewater can be enhanced biologically treatment, especially in removing T.H and Mg2+. Also reducing the pollutants which lead to high water quality. The Delayed Coker has a good an impact on Enhanced Chemical Treatment (CT) of Biologically Based Wastewater (WW) Processes. The biological of wastewater proved to be a good selection in order to remove all undesired elements to get a high quality wastewater and identical with the standards of wastewater used 2018-06-01T00:00:00Z